You can find your help to buy ISA number on the first-time buyer declaration you may have sent your ISA provider or the help to buy scheme regional agent when you were claiming your help to buy ISA bonus.
You may be able to find your help to buy ISA number by looking at the emails you sent to your conveyancer when you claimed your help to buy ISA bonus or by asking your conveyancer for copies of documents which contain your help to buy ISA number.
You may also be able to find your help to buy ISA number by contacting your help to buy ISA provider and asking them for a copy of the closing statement which was sent to you when you closed your help to buy ISA account. They should retain a copy of these documents for 6 years after you have closed your account.
You could also simply find your help to buy ISA number by asking the help to buy ISA provider for it.
If you need financial advice and you live in the UK then you could contact the Money Advice service over the phone or via chat for impartial advice.
You can also contact the debt charity “Step Change” if you are in debt and need help.